const Koa = require('koa')
const app = new Koa()
const views = require('koa-views')
const json = require('koa-json')
const onerror = require('koa-onerror')
const bodyparser = require('koa-bodyparser')
const logger = require('koa-logger')

const index = require('./routes/index')
const users = require('./routes/users')
const comments = require('./routes/comments')

// error handler
onerror(app)

// middlewares
app.use(
	bodyparser({
		enableTypes: ['json', 'form', 'text']
	})
)
app.use(json())
app.use(logger())
app.use(require('koa-static')(__dirname + '/public'))

app.use(
	views(__dirname + '/views', {
		extension: 'pug'
	})
)

app.use(async (ctx, next) => {
	console.log('get:', ctx.query)
	console.log('post:', ctx.request.body)
	await next()
})

// logger
app.use(async (ctx, next) => {
	const start = new Date()
	await next()
	const ms = new Date() - start
	console.log(`${ctx.method} ${ctx.url} - ${ms}ms`)
})

// routes comments
app.use(index.routes(), index.allowedMethods())
app.use(users.routes(), users.allowedMethods())
app.use(comments.routes(), comments.allowedMethods())

// error-handling
app.on('error', (err, ctx) => {
	console.error('server error', err, ctx)
})

module.exports = app
